A critical review of adsorption methods that are currently used in the characterization of ordered organic−inorganic nanocomposite materials is presented, and the adsorption methodology that is potentially useful for this characterization, but has not yet been applied, is discussed. The ordered organic−inorganic nanocomposites include surface-functionalized ordered mesoporous materials (OMMs) with siliceous frameworks (synthesized either via postsynthesis surface modification or via direct co-condensation method), periodic mesoporous organosilicas, and surfactant-containing OMMs. This review covers the methods for determination of the specific surface area and pore volume. The available methods for mesopore size analysis are critically compared and evaluated, with special emphasis on the recent developments related to the application of advanced computational methods for studying adsorption in porous media and to the direct modeling of adsorption using highly ordered surface-functionalized OMMs as model a...

Gas adsorption characterization of ordered organic-inorganic nanocomposite materials

Water adsorption in porous materials is important for many applications such as dehumidification, thermal batteries, and delivery of drinking water in remote areas. In this study, we have identified three criteria for achieving high performing porous materials for water adsorption. These criteria deal with condensation pressure of water in the pores, uptake capacity, and recyclability and water stability of the material. In search of an excellently performing porous material, we have studied and compared the water adsorption properties of 23 materials, 20 of which are metal–organic frameworks (MOFs). Among the MOFs are 10 zirconium(IV) MOFs with a subset of these, MOF-801-SC (single crystal form), −802, −805, −806, −808, −812, and −841 reported for the first time. MOF-801-P (microcrystalline powder form) was reported earlier and studied here for its water adsorption properties. MOF-812 was only made and structurally characterized but not examined for water adsorption because it is a byproduct of MOF-841 s...

/pdf/water-adsorption-in-porous-metal-organic-frameworks-and-2dkmq82zsl.pdf

Water Adsorption in Porous Metal–Organic Frameworks and Related Materials

The area of periodic mesoporous materials prepared by cooperative assembly in the presence of amphiphile molecules underwent dramatic growth. Among the silica-based materials, many types may be reg...

Periodic Mesoporous Silica-Based Organic−Inorganic Nanocomposite Materials

The discovery of periodic mesoporous MCM-41 and related molecular sieves has attracted significant attention from a fundamental as well as applied perspective. They possess well-defined cylindrical/hexagonal mesopores with a simple geometry, tailored pore size, and reproducible surface properties. Hence, there is an ever-growing scientific interest in the challenges posed by their processing and characterization and by the refinement of various sorption models. Further, MCM-41-based materials are currently under intense investigation with respect to their utility as adsorbents, catalysts, supports, ion-exchangers, and molecular hosts. In this article, we provide a critical review of the developments in these areas with particular emphasis on adsorption characteristics, progress in controlling the pore sizes, and a comparison of pore size distributions using traditional and newer models. The model proposed by the authors for adsorption isotherms and criticalities in capillary condensation and hysteresis is found to explain unusual adsorption behavior in these materials while providing a convenient characterization tool.

Recent advances in processing and characterization of periodic mesoporous MCM-41 silicate molecular sieves

Nanoporous materials with enhanced hydrophilicity and high water sorption capacity

The first and second adsorption–desorption isotherms of water vapor on a new mesoporous material derived from kanemite have been measured. The isotherms show unusual type V isotherms and large hysteresis. The type V isotherms, which have never been observed for the other adsorbates, suggest that the mesoporous material has a hydrophobic surface, although the hydrophobicity decreased after treatment with water vapor because of rehydration of the surface. The significantly large hysteresis could be explained by the difference in contact angle between adsorption and desorption.

Adsorption Isotherm of Water Vapor and Its Large Hysteresis on Highly Ordered Mesoporous Silica

Silanol groups in the mesoporous silica derived from a layered silicate, kanemite (NaHSi12O5 ċ3H2O), were esterified with alcohols (CnH2n+1OH n=2 , 4, and 8). Most of the silanol groups in the mesopores were modified with ethanol though some silanol groups remained after the reactions with 1-butanol and 1-octanol. With the increase in the alkyl chain lengths of the alcohols, the pore sizes of the esterified products decreased and the hydrophobicity increased.

Esterification of the Silanol Groups in the Mesoporous Silica Derived from Kanemite

Preface: Akiyoshi Yonezawa, Yuto Kitamura, Arthur Meerman and Kazuo Kuroda.- Chapter 1: The Emergence of International Dimensions in East Asian Higher Education: Pursuing Regional and Global Development: Akiyoshi Yonezawa, Yuto Kitamura, Arthur Meerman and Kazuo Kuroda.- Chapter 2: Higher Education as a Public Good in a Marketized East Asian Environment: Simon Marginson.- Chapter 3: Asian Research: The Role of Universities: William K. Cummings.- Chapter 4: The Institutional Prospects of Cross-Border Higher Education for East Asian Regional Integration: An Analysis of the JICA Survey of Leading Universities in East Asia: Kazuo Kuroda, Takako Yuki and Kyuwon Kang.- Chapter 5: The Harmonization of Higher Education in Southeast Asia: Supachai Yavaprabhas.- Chapter 6: China-ASEAN Relations in Higher Education: An Analytical Framework: Anthony Welch: Chapter 7: The Regionalization of Higher Education in Northeast Asia: Kiyong Byun and Sangheon Um.- Chapter 8: Subregional Collaboration in Higher Education: Harmonization and Networking in the Greater Mekong Subregion (GMS): Yasushi Hirosato.- Chapter 9: The Impact of Inter-University Exchange and Cooperation on Doctoral Programs in Southeast Asia: Naoki Umemiya, Akiyoshi Yonezawa, Toyohiko Yogo and Kazuo Tsutsumi.- Chapter 10: Tied to the Family and Bound to the Labor Market: Understanding Chinese Student Mobility in Japan: Gracia Liu-Farrer.- Chapter 11: Education for Sustainable Development at Universities in Japan: Yuto Kitamura and Naoko Hoshii.- Chapter 12: Japanese Universities' Strategic Approach to Internationalization: Accomplishments and Challenges: Hiroshi Ota.- Conclusion.- Akiyoshi Yonezawa, Yuto Kitamura, Arthur Meerman and Kazuo Kuroda.- List of Contributors.

https://www.springer.com/cda/content/document/productFlyer/productFlyer_978-94-017-8821-2.pdf?SGWID=0-0-1297-176576900-0

Emerging international dimensions in East Asian higher education

Giving Dimension and Direction to Mobility and Migration in Asian Pacific Higher Education D.Neubauer PART I:NATIONAL AND REGIONAL TRANSFORMATIONS ON MOBILITY AND MIGRATION IN ASIAN PACIFIC HIGHER EDUCATION Mobility, Markets and Equity in Higher Education: Match or Mismatch? P.Hershock Learning the Hard Way: Lessons from Australia's Decade of Innovation in Student Migration Policy C.Ziguras 'Shared Space' in Global Higher Education:A Southeast Asian Perspective M.Sirat International Mobility of Faculty and its Impacts on Korean Higher Education Jung-Cheol Shin Changing Structure of Japanese Higher Education in the New Era: Dealing with Globalization, Mobility andthe Massification Movement R.Yamada Japan's Approaches toward Strategic Global Alliances in East Asia: Strengthening the Bridge in Higher Education among Nations Y.Tanaka PART II:INSTITUTIONAL RESPONSES TO MOBILITY AND MIGRATION IN ASIAN PACIFICHIGHER EDUCATION Mobility, Migration, and Globalization in a Major Research University: Gap Between Rhetoric and Reality at UCLA J.Hawkins Migration and Mobility in the Current Era of Globalization: Case Studies of LSE and Science Po M.Scot 'Asianization of Asia' in Higher Education - A Case of Waseda University K.Kuroda Constructing a 'Global University Centered in Asia': Globalizing Strategies and Experiences at the National University of Singapore F.Leo Collins Contributions of Foreign Experts to Chinese Academic Development: A Case Study of Peking University M.Wan-hua International Accreditation and its Impact on Student Mobility in Taiwan Universities - A Case Study of Fu Jen Catholic University Yung-chi Hou PART III: CONCLUSION Conclusion: Ways forward for Migration and Mobility in Asia Pacific Higher Education D.Neubauer & K.Kuroda

Mobility and Migration in Asian Pacific Higher Education

Set against the backdrop of increasing economic interdependence in East Asia, the idea of “regional integration” is now being discussed as a long-term political process in the region. As in the field of the international economy, de facto integration and interdependence exist with respect to the internationalization of the higher education system in East Asia. Based on the results of a comprehensive Japan International Cooperation Agency Research Institute (JICA-RI) survey of 300 leading higher education institutions active in cross-border higher education, located in ten Association of Southeast Asian Nations (ASEAN) member Southeast Asian countries and three Northeast Asian countries (China, Japan, and Korea), this paper examines universities’ perceptions of the degree of cross-border activities, the significance of their “expected outcomes,” and their regional preferences for partners. The objective is to envision a direction for a future regional higher education framework in East Asia and to consider the policy implications of the internationalization of higher education in East Asia in the context of regionalization. The findings related to the degree of cross-border activities suggest a current perception that there is more prominent in conventional than in innovative activities, but that innovation will rise considerably in the future. With respect to the significance of “expected outcomes,” academic and political “expected outcome” are perceived to be more significant than economic “expected outcome,” which are nevertheless expected to be more significant in the future. Finally, in terms of their preferred regions of partners, universities in East Asia overall place a high priority on building partnerships within their own region. Yet, among Northeast Asian universities, North America is perceived as the most active partner.

Cross-Border Higher Education for Regional Integration:Analysis of the JICA-RI Survey on Leading Universities in East Asia

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